Auto-adapted Iterative Deflective Tomography Approaching High Frequency Field Accurately
A new deflective tomography system was put forward and named Auto-adapted Iterative Deflective Tomography(AIDT).It was tested to approach the accurate values with sufficient projections.A high frequency field was designed.It was simulated to project in all directions.Two cross projections was selected to reconstruct the field by AIDT.Then,projections were increased step by step.The reconstructed results were studied.As a result,high frequency sections are distorted a lot.With a few projections,the reconstructed result loses the basic characteristics of the model.With projections increasing,the distortion gets lighter and lighter.Near the critical projections,the reconstructed field becomes similar to the model except some high frequency sections.When eighty-four projections are employed,the reconstructed result is in accord with the model.In this case,the Mean Square Error(MSE) is 0.00000999,and the Peak Error(PE) is 0.013142％.As we know,this is most accurate reconstruction to now.AIDT can accurately reconstruct the high frequency field.
Numerical simulation projection reconstruction high frequency field tomography
Yizhong Song
College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing,210016,China;Department of Physics,Dezhou University,Dezhou,253000,China
国际会议
9th International Conference on Signal Processing(第九届国际信号处理学术会议)(ICSP08)
北京
英文
2008-10-26（万方平台首次上网日期，不代表论文的发表时间）